[INFO] fetching crate miura 0.1.1...
[INFO] building miura-0.1.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate miura 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate miura 0.1.1
[INFO] finished tweaking crates.io crate miura 0.1.1
[INFO] tweaked toml for crates.io crate miura 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate miura 0.1.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e258b548a4c230f35fda8f5a6d54c940e0a15b7ecfb3a428980a3a57afa503b9
[INFO] running `Command { std: "docker" "start" "-a" "e258b548a4c230f35fda8f5a6d54c940e0a15b7ecfb3a428980a3a57afa503b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e258b548a4c230f35fda8f5a6d54c940e0a15b7ecfb3a428980a3a57afa503b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e258b548a4c230f35fda8f5a6d54c940e0a15b7ecfb3a428980a3a57afa503b9", kill_on_drop: false }`
[INFO] [stdout] e258b548a4c230f35fda8f5a6d54c940e0a15b7ecfb3a428980a3a57afa503b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05799b812831cc69c7128863033a48331b8a9a8c229ad2c4f432526e920f0617
[INFO] running `Command { std: "docker" "start" "-a" "05799b812831cc69c7128863033a48331b8a9a8c229ad2c4f432526e920f0617", kill_on_drop: false }`
[INFO] [stderr]    Compiling miura v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut left: Vec<u32> = (*rest).iter() // iterator over a vector to references to unsigned integers
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut right: Vec<u32> = (*rest).iter().filter(|&&x| x > pivot).map(|x| *x).collect();
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/sorting.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         for j in 0..(*(counts.entry(i).or_insert(0))) {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_ITERATIONS` is never used
[INFO] [stdout]  --> src/series.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NUM_ITERATIONS: usize = 100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exp` is never used
[INFO] [stdout]  --> src/series.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn exp(x: f64) -> f64 {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/sorting.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |         while i >= 0 && a[i] > key {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "05799b812831cc69c7128863033a48331b8a9a8c229ad2c4f432526e920f0617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05799b812831cc69c7128863033a48331b8a9a8c229ad2c4f432526e920f0617", kill_on_drop: false }`
[INFO] [stdout] 05799b812831cc69c7128863033a48331b8a9a8c229ad2c4f432526e920f0617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f79b8a0bc50ab1b537a291307eebbc5d9a4da26dea8e6bae2d2da716a6c1db4
[INFO] running `Command { std: "docker" "start" "-a" "2f79b8a0bc50ab1b537a291307eebbc5d9a4da26dea8e6bae2d2da716a6c1db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling miura v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut left: Vec<u32> = (*rest).iter() // iterator over a vector to references to unsigned integers
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut right: Vec<u32> = (*rest).iter().filter(|&&x| x > pivot).map(|x| *x).collect();
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/sorting.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         for j in 0..(*(counts.entry(i).or_insert(0))) {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `NUM_ITERATIONS` is never used
[INFO] [stdout]  --> src/series.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const NUM_ITERATIONS: usize = 100;
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `exp` is never used
[INFO] [stdout]  --> src/series.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn exp(x: f64) -> f64 {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/sorting.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |         while i >= 0 && a[i] > key {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:154:9
[INFO] [stdout]     |
[INFO] [stdout] 154 |     let mut left: Vec<u32> = (*rest).iter() // iterator over a vector to references to unsigned integers
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/sorting.rs:167:9
[INFO] [stdout]     |
[INFO] [stdout] 167 |     let mut right: Vec<u32> = (*rest).iter().filter(|&&x| x > pivot).map(|x| *x).collect();
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/sorting.rs:207:13
[INFO] [stdout]     |
[INFO] [stdout] 207 |         for j in 0..(*(counts.entry(i).or_insert(0))) {
[INFO] [stdout]     |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> src/sorting.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 |         while i >= 0 && a[i] > key {
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "2f79b8a0bc50ab1b537a291307eebbc5d9a4da26dea8e6bae2d2da716a6c1db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f79b8a0bc50ab1b537a291307eebbc5d9a4da26dea8e6bae2d2da716a6c1db4", kill_on_drop: false }`
[INFO] [stdout] 2f79b8a0bc50ab1b537a291307eebbc5d9a4da26dea8e6bae2d2da716a6c1db4
